Merge pull request kodecocodes#665 from jawwad/fix-dfs-graph-class-warning

vincentngo · web-flow · commit 841b443d9450 · 2017-12-04T21:55:44.000-05:00
Fix warning: Result of call to 'addNode' is unused
diff --git a/Depth-First Search/DepthFirstSearch.playground/Sources/Graph.swift b/Depth-First Search/DepthFirstSearch.playground/Sources/Graph.swift
@@ -5,6 +5,7 @@ public class Graph: CustomStringConvertible, Equatable {
     self.nodes = []
   }
   
+  @discardableResult
   public func addNode(_ label: String) -> Node {
     let node = Node(label)
     nodes.append(node)

Original file line number	Diff line number	Diff line change
`@@ -5,6 +5,7 @@ public class Graph: CustomStringConvertible, Equatable {`
`5`	`5`	`self.nodes = []`
`6`	`6`	`}`
`7`	`7`
	`8`	`+ @discardableResult`
`8`	`9`	`public func addNode(_ label: String) -> Node {`
`9`	`10`	`let node = Node(label)`
`10`	`11`	`nodes.append(node)`